Starch-depositing plane



' (No Model.)

' W. DURYEA.

STARGH DEPOSITING PLANE.

Patented June 16, 1885.

I Will/ 11111101111 N. PETERS, Pholoihhugnpho', Wahhgflm D. C.

UNITED STATES PATENT OFFICE.

\VRIGHT DURYEA, OF BROOKLYN, ASSIGNOR TO THE GLEN COVE MANUFACTURINGCOMPANY, OF GLEN COVE, NEW YORK.

STARCH-DEPOSITING PLANE.

SPECIFICATION forming part of Letters Patent No, 320,430, dated June 16,1885.

Application filed September 5, 1884.

(N0 model.)

To all whom it may concern:

Be it known that I, \VRIGHT DURYEA, of the city of Brooklyn, in thecounty of Kings and State of New York, have invented a new and usefulImprovement in Starch-Dcpositin g Planes or Runs, of which the followingis a specification.

In order to separate or obtain the starch from the starch-milk, thelatter, at a proper stage in its treatment, is caused to flow over oralong planes or runs, on which the starch is deposited, while the spentliquor with the fine gluten still in suspension flows away from the endof the depositing plane or run. In order to obtain good results andinsure the depositing of nearly all the starch, these planes or runs areoften a hundred or more feet in length and have but a very slightinclination. Then the depositing on the plane or run is commenced, theresult is very satisfactory, but the starch is deposited much morerapidly and in much greater quantity near the head of the plane or runthan near the tail end thereof, and the consequence is that as the planeor run fills up, the inclination of its bottom, owing to the unevendeposit of starch, becomes greater,the flow of the starchmilk becomesmore and more rapid, and the quantity of starch which is not deposited,but which passes from the plane or run with the spent liquor orglutenwater, increases to awasteful extent.

The object of my invention is to maintain a more uniform inclination ofthe planes or runs, whether they be full or empty, and to therebyincrease the economy of the depositing operation.

To this end my invention consists in the combination of a series ofcomparatively short planes or runs, aranged one in advance of the other,with the tail of each resting on the head of the next, and a transversepartition in the head of each plane or run in advance of the first, andforming therein a weir, over which the starch-milk flows.

The invention further consists in the combin ation, with the series ofplanes or runs arranged and constructed as above described, of stirrersor agitators arranged behind the transverse partitions in the heads ofthe several planes or runs, and by their operation serving to preventthe spaces behind said partitions l'rom filling up.

In the accompanying drawings, Figure l is a sectional view of a seriesof planes or runs embodying my invention. Fig. 2 is a similar view on alarger scale, illustrating the tail portion of one plane or run and thehead portion of the one next in advance. Fig. 3 is a plan of the partsshown in Fig. 2 and on the same scale; and Fig. 4 is a transversevertical section on the plane of the dotted line a: m, Fig. 2.' 7

Similar letters of reference designate corresponding parts in all thefigures.

A A A designate depositing planes or runs, any number of which may bearranged in a series, as shown, one in advance of another, the tail ofeach plane or run resting upon and supported by the head ofthe run nextin advance of it. The series of planes or runs is supplied from a tankor vat, B, as is usual. At the tail end of each plane or run is a gate,a, capable of vertical adjustment in suitable guides, b, by means ofscrewrods 0 and nuts (I, in a well-understood manner. This gate is to beraised slightly from time to time as the plane or run fills up. In thehead of each plane or run, except the first of the series, is secured atransverse partition, c, forming a weir over which the fluid flows tothe plane or run, and behind this partition and in the head of the planeor run is a stirrer or agitator, f, which may be rotated slowly by abelt over a pulley, f and which prevents starch from depositing behindthe partition 0.

I am aware that adjustable gates have been arranged at the tail ends oflong depositing planes or runs, and that there has been arranged at thetail ends of such long planes or runs a gutter for receiving the spentliquor or gluten-water. These features I do not claim as of myinvention.

By employing a number or series of com- 95 paratively short planes orruns arranged as described I am enabled to maintain a nearlyuniforminclination of the bottom of each, whether they be empty or partlyfilled, and in this way I secure a more even speed of I00 flow and amore economical operation, with but little waste.

'By interrupting the flow of theliquor in the manner described I alsobreak up or stop the formation of eddies or currents in the liquor, andobviate to a great extent the guttering or formation of channels in thedeposited starch, which all tends to produce waste.

The edge of the partition forms a clearlydetined and permanenthorizontal weir, over which the milk flows in an unbroken line from sideto side, and thus prevents the guttering or channeling of the depositedstarch at the head of the plane or run.

WVhat I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination of a. series of planes or runs, arranged one inadvance of another, with the tail of each resting on the head of thenext, and a transverse partition in the \VRIGHT DUR YE A.

Witnesses:

C. HALL, FREDK. HAYNES.

